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101232331121 = 239423566239
BaseRepresentation
bin101111001000111101…
…0101100100101110001
3100200022001111020202002
41132101322230211301
53124310434043441
6114301104103345
710212426421415
oct1362172544561
9320261436662
10101232331121
1139a29014779
1217752604b55
139713c13c5c
144c849a8d45
15297750eb9b
hex1791eac971

101232331121 has 4 divisors (see below), whose sum is σ = 101655897600. Its totient is φ = 100808764644.

The previous prime is 101232331111. The next prime is 101232331159. The reversal of 101232331121 is 121133232101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121133232101 = 717304747443.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101232331121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101232331093 and 101232331102.

It is not an unprimeable number, because it can be changed into a prime (101232331111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211782881 + ... + 211783358.

It is an arithmetic number, because the mean of its divisors is an integer number (25413974400).

Almost surely, 2101232331121 is an apocalyptic number.

It is an amenable number.

101232331121 is a deficient number, since it is larger than the sum of its proper divisors (423566479).

101232331121 is an equidigital number, since it uses as much as digits as its factorization.

101232331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423566478.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 101232331121 its reverse (121133232101), we get a palindrome (222365563222).

The spelling of 101232331121 in words is "one hundred one billion, two hundred thirty-two million, three hundred thirty-one thousand, one hundred twenty-one".

Divisors: 1 239 423566239 101232331121